PMID- 35078917 OWN - NLM STAT- MEDLINE DCOM- 20220531 LR - 20231101 IS - 1468-330X (Electronic) IS - 0022-3050 (Print) IS - 0022-3050 (Linking) VI - 93 IP - 6 DP - 2022 Jun TI - Differential levels of plasma biomarkers of neurodegeneration in Lewy body dementia, Alzheimer's disease, frontotemporal dementia and progressive supranuclear palsy. PG - 651-658 LID - 10.1136/jnnp-2021-327788 [doi] AB - OBJECTIVES: This longitudinal study compared emerging plasma biomarkers for neurodegenerative disease between controls, patients with Alzheimer's disease (AD), Lewy body dementia (LBD), frontotemporal dementia (FTD) and progressive supranuclear palsy (PSP). METHODS: Plasma phosphorylated tau at threonine-181 (p-tau181), amyloid beta (Alphabeta)42, Abeta40, neurofilament light (NfL) and glial fibrillar acidic protein (GFAP) were measured using highly sensitive single molecule immunoassays (Simoa) in a multicentre cohort of 300 participants (controls=73, amyloid positive mild cognitive impairment (MCI+) and AD dementia=63, LBD=117, FTD=28, PSP=19). LBD participants had known positron emission tomography (PET)-Abeta status. RESULTS: P-tau181 was elevated in MCI+AD compared with all other groups. Abeta42/40 was lower in MCI+AD compared with controls and FTD. NfL was elevated in all dementias compared with controls while GFAP was elevated in MCI+AD and LBD. Plasma biomarkers could classify between MCI+AD and controls, FTD and PSP with high accuracy but showed limited ability in differentiating MCI+AD from LBD. No differences were detected in the levels of plasma biomarkers when comparing PET-Abeta positive and negative LBD. P-tau181, NfL and GFAP were associated with baseline and longitudinal cognitive decline in a disease specific pattern. CONCLUSION: This large study shows the role of plasma biomarkers in differentiating patients with different dementias, and at monitoring longitudinal change. We confirm that p-tau181 is elevated in MCI+AD, versus controls, FTD and PSP, but is less accurate in the classification between MCI+AD and LBD or detecting amyloid brain pathology in LBD. NfL was elevated in all dementia groups, while GFAP was elevated in MCI+AD and LBD. CI - (c) Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY. Published by BMJ. FAU - Chouliaras, Leonidas AU - Chouliaras L AUID- ORCID: 0000-0002-3052-3879 AD - Department of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, UK lc716@medschl.cam.ac.uk. FAU - Thomas, Alan AU - Thomas A AD - Translational and Clinical Research Institute, Newcastle University, Newcastle, UK. FAU - Malpetti, Maura AU - Malpetti M AUID- ORCID: 0000-0001-8923-9656 AD - Department of Clinical Neurosciences, University of Cambridge School of Clinical Medicine, Cambridge, UK. FAU - Donaghy, Paul AU - Donaghy P AD - Translational and Clinical Research Institute, Newcastle University, Newcastle, UK. FAU - Kane, Joseph AU - Kane J AD - Centre for Public Health, Queen's University Belfast, Belfast, UK. FAU - Mak, Elijah AU - Mak E AD - Department of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, UK. FAU - Savulich, George AU - Savulich G AD - Department of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, UK. FAU - Prats-Sedano, Maria A AU - Prats-Sedano MA AD - Department of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, UK. FAU - Heslegrave, Amanda J AU - Heslegrave AJ AD - Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK. AD - Dementia Research Insitute, UCL, London, UK. FAU - Zetterberg, Henrik AU - Zetterberg H AUID- ORCID: 0000-0003-3930-4354 AD - Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK. AD - Dementia Research Insitute, UCL, London, UK. AD - Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. AD - Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Molndal, Sweden. AD - Hong Kong Center for Neurodegenerative Diseases, Hong Kong, China. FAU - Su, Li AU - Su L AD - Department of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, UK. AD - Department of Neuroscience, University of Sheffield, Sheffield, UK. FAU - Rowe, James Benedict AU - Rowe JB AUID- ORCID: 0000-0001-7216-8679 AD - Department of Clinical Neurosciences, University of Cambridge School of Clinical Medicine, Cambridge, UK. AD - Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK. FAU - O'Brien, John Tiernan AU - O'Brien JT AD - Department of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, UK. AD - Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK. LA - eng GR - WT_/Wellcome Trust/United Kingdom GR - 220258/WT_/Wellcome Trust/United Kingdom GR - MR/M009041/1/MRC_/Medical Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220125 PL - England TA - J Neurol Neurosurg Psychiatry JT - Journal of neurology, neurosurgery, and psychiatry JID - 2985191R RN - 0 (Amyloid beta-Peptides) RN - 0 (Biomarkers) RN - 0 (Glial Fibrillary Acidic Protein) RN - 0 (tau Proteins) SB - IM CIN - doi: 10.1136/jnnp-2021-328649 MH - *Alzheimer Disease/diagnosis MH - Amyloid beta-Peptides MH - Biomarkers MH - *Cognitive Dysfunction/diagnosis MH - *Frontotemporal Dementia/diagnosis MH - Glial Fibrillary Acidic Protein MH - Humans MH - *Lewy Body Disease/diagnosis MH - Longitudinal Studies MH - *Neurodegenerative Diseases MH - *Supranuclear Palsy, Progressive/diagnosis MH - tau Proteins PMC - PMC9148982 MID - EMS142453 OTO - NOTNLM OT - alzheimer's disease OT - dementia OT - frontotemporal dementia OT - lewy body dementia OT - movement disorders COIS- Competing interests: Competing interests unrelated to this work, JBR serves as an associate editor to Brain and is a non-remunerated trustee of the Guarantors of Brain, Darwin College and the PSP Association (UK). He provides consultancy to Asceneuron, Biogen, UCB and has research grants from AZ-Medimmune, Janssen, Lilly as industry partners in the Dementias Platform UK. Unrelated to this work, JTOB has received honoraria for work as DSMB chair or member for TauRx, Axon, Eisai, has acted as a consultant for Roche, and has received research support from Alliance Medical and Merck. HZ has served at scientific advisory boards and/or as a consultant for Alector, Eisai, Denali, Roche Diagnostics, Wave, Samumed, Siemens Healthineers, Pinteon Therapeutics, Nervgen, AZTherapies, CogRx and Red Abbey Labs, has given lectures in symposia sponsored by Cellectricon, Fujirebio, Alzecure and Biogen, and is a co-founder of Brain Biomarker Solutions in Gothenburg AB (BBS), which is a part of the GU Ventures Incubator Program (outside submitted work). Avid Radiopharmaceuticals, a wholly owned subsidiary of Eli Lilly and Company, enabled use of the 18F-florbetapir by providing tracer and funding scanner time, but was not involved in data analysis or interpretation. EDAT- 2022/01/27 06:00 MHDA- 2022/06/01 06:00 PMCR- 2022/05/30 CRDT- 2022/01/26 05:28 PHST- 2021/08/10 00:00 [received] PHST- 2021/12/01 00:00 [accepted] PHST- 2022/01/27 06:00 [pubmed] PHST- 2022/06/01 06:00 [medline] PHST- 2022/01/26 05:28 [entrez] PHST- 2022/05/30 00:00 [pmc-release] AID - jnnp-2021-327788 [pii] AID - 10.1136/jnnp-2021-327788 [doi] PST - ppublish SO - J Neurol Neurosurg Psychiatry. 2022 Jun;93(6):651-658. doi: 10.1136/jnnp-2021-327788. Epub 2022 Jan 25.